Structural, morphological and photoluminescence characterizations of Sm3+ doped Y2O3 nano-sized phosphors synthesized by ultrasound assisted sol-gel method

Tailoring the properties of Y2O3 via synthesis parameters varied during the PVA-assisted sol-gel route

“…The pH of the solution influenced the crystallite size, in which there was a significant increase for the more acidic pH. It is reported in the literature that the highest crystallite size in Y 2 O 3 particles is an important parameter for several applications, such as temperature sensing [4], down conversion properties [10], low-dose X-ray conversion sensors [11], and others. However, these works used longer times of calcination (from 2 to 5 h).…”

“…Results from the sol-gel route have shown an increase in the relative sensitivity as temperature sensing with the increase in crystallite size, indicating that the synthesis method can be employed for the control of optical parameters [4]. Another paper [10] shows that the crystallite size of Sm-doped Y 2 O 3 changed with agitation conditions during the synthesis by the sol-gel method influencing the photoluminescence response. Also, undoped Y 2 O 3 , synthesized by the combustion process with different calcination temperatures, demonstrated the best response for application in low-dose X-ray conversion sensors due to the highest crystallite size [11].…”

Preparation of rare earth-doped nano-fluorescent materials in the second near-infrared region and their application in biological imaging

“…For the optimization of the configuration and performance of the RENPs, different improvements have been made to the sol–gel approach. The research group of Lyes Lamiri 44 prepared Y 2 O 3 nanoparticles doped with Sm 3+ by ultrasonic-assisted sol–gel approach. In the experiment, the gel was prepared by magnetic stirring (MA) and ultrasonic stirring (US) and then dried at 200 °C to get the xerogel, which was annealed at 1000 °C to obtain the nanoparticles.…”

Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts

“…Ultrasonication technology coupled with the SCS technique is promising for the synthesis of binary, ternary and doped metal oxide nanoparticles. 89,90…”